How to Calculate Equilateral Triangle
What is Equilateral Triangle?
An equilateral triangle has all three sides equal and all three angles equal to 60°. It is the most symmetric triangle and tiles a plane perfectly with copies of itself.
Step-by-Step Guide
- 1All sides equal: a = b = c
- 2Area = (√3 / 4) × side²
- 3Height = (√3 / 2) × side · Perimeter = 3 × side
Worked Examples
Input
s=10
Result
h=8.66, A=43.30, P=30
h=(√3/2)×10=8.66
Input
s=6
Result
h=5.20, A=15.59, P=18